Definition - What does Pseudocode mean?
Pseudocode is an informal program description that does not contain code syntax or underlying technology considerations. Pseudocode summarizes a program’s steps (or flow) but excludes underlying details.
Techopedia explains Pseudocode
To be pseudo is to be fake. In other words, something that is pseudo is pretending that to be something it's not. Given this, the term pseudocode makes sense -- it isn't code, but it is the starting point to what the code should look like.
System designers write pseudocode to ensure that programmers understand a software project's requirements and align code accordingly. It can be anything from a few scribbles on a piece of paper, to detailed designs using a modeling language.